hp's technology helps us turn millions of tweets, posts and stories into real-time business insights that help nascar win with our fans. >>> welcome back, everybody. there were celebrations over the weekend. tomorrow was the 50th anniversary of martin luther king's i have a dream speech. tracie potts is in washington. tell us what's in store. >> reporter: betty, you saw the crowds over the weekend. tomorrow is the actual anniversary. there's a program planned, four hours of speeches and presentations. the highlight of that is at the end president obama delivering a speech at the very site where martin luther king delivered his i have a dream speech 50 years ago. that's happening tomorrow, but there are some events leading up to that today. at the white house, a film screening hosted by first lady michelle obama. she'll be speaking there. there's an educational response happening there as well. the big event, hundreds of thousands of people expected here on the national mall tomorrow. >> that's going to be quite a sight. thank you, tracie. >>> some stories making news. george zimmerma